Sources Used

Metropolitan Touring-www.metropolitan-touring.com

World Wildlife-www.worldwildlife.org

Celebrity Cruises-www.Celebritycruises.com

Galapagos Pro-www.Galapagos-pro.com

Galapagos Bound-www.Galapagosbound.com

Discovering Galapagos-www.discoveringGalapagos.org

Imperial College-www.imperial.ac

The United Nations-www.un.org

Galapagos Conservation Trust - www.galapagosconservation.org

Aqua Expeditions -  www.aquaexpeditions.com

Animal Diversity Web - www.animaldiversity.org 

American Bird Conservation - www.abcbirds.org 

A - Z Animals - www.a-z-animals.com 

Bartleby Research - www.bartleby.com

National Geographic -  www.nationalgeographic.com

Charles Darwin Foundation - www.darwinfoundation.org

Britannica - www.britannica.com   

Facts - www.facts.net